718cf2ccb9
Mainly focus on files that use BSD 2-Clause license, however the tool I was using misidentified many licenses so this was mostly a manual - error prone - task. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts.
288 lines
7.7 KiB
C
288 lines
7.7 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* Copyright 1994-2009 The FreeBSD Project.
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* All rights reserved.
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE FREEBSD PROJECT``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FREEBSD PROJECT OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY,OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION)HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* The views and conclusions contained in the software and documentation
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* are those of the authors and should not be interpreted as representing
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* official policies,either expressed or implied, of the FreeBSD Project.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include "opt_mfi.h"
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/selinfo.h>
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#include <sys/module.h>
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#include <sys/malloc.h>
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#include <sys/sysctl.h>
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#include <sys/uio.h>
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#include <sys/bio.h>
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#include <sys/bus.h>
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#include <sys/conf.h>
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#include <sys/disk.h>
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#include <geom/geom_disk.h>
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#include <vm/vm.h>
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#include <vm/pmap.h>
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#include <machine/md_var.h>
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#include <machine/bus.h>
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#include <sys/rman.h>
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#include <dev/mfi/mfireg.h>
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#include <dev/mfi/mfi_ioctl.h>
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#include <dev/mfi/mfivar.h>
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static int mfi_syspd_probe(device_t dev);
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static int mfi_syspd_attach(device_t dev);
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static int mfi_syspd_detach(device_t dev);
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static disk_open_t mfi_syspd_open;
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static disk_close_t mfi_syspd_close;
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static disk_strategy_t mfi_syspd_strategy;
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static dumper_t mfi_syspd_dump;
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static devclass_t mfi_syspd_devclass;
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static device_method_t mfi_syspd_methods[] = {
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DEVMETHOD(device_probe, mfi_syspd_probe),
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DEVMETHOD(device_attach, mfi_syspd_attach),
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DEVMETHOD(device_detach, mfi_syspd_detach),
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{ 0, 0 }
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};
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static driver_t mfi_syspd_driver = {
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"mfisyspd",
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mfi_syspd_methods,
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sizeof(struct mfi_system_pd)
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};
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DRIVER_MODULE(mfisyspd, mfi, mfi_syspd_driver, mfi_syspd_devclass, 0, 0);
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static int
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mfi_syspd_probe(device_t dev)
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{
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return (0);
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}
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static int
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mfi_syspd_attach(device_t dev)
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{
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struct mfi_system_pd *sc;
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struct mfi_pd_info *pd_info;
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struct mfi_system_pending *syspd_pend;
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uint64_t sectors;
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uint32_t secsize;
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sc = device_get_softc(dev);
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pd_info = device_get_ivars(dev);
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sc->pd_dev = dev;
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sc->pd_id = pd_info->ref.v.device_id;
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sc->pd_unit = device_get_unit(dev);
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sc->pd_info = pd_info;
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sc->pd_controller = device_get_softc(device_get_parent(dev));
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sc->pd_flags = 0;
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sectors = pd_info->raw_size;
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secsize = MFI_SECTOR_LEN;
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mtx_lock(&sc->pd_controller->mfi_io_lock);
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TAILQ_INSERT_TAIL(&sc->pd_controller->mfi_syspd_tqh, sc, pd_link);
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TAILQ_FOREACH(syspd_pend, &sc->pd_controller->mfi_syspd_pend_tqh,
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pd_link) {
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TAILQ_REMOVE(&sc->pd_controller->mfi_syspd_pend_tqh,
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syspd_pend, pd_link);
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free(syspd_pend, M_MFIBUF);
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break;
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}
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mtx_unlock(&sc->pd_controller->mfi_io_lock);
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device_printf(dev, "%juMB (%ju sectors) SYSPD volume (deviceid: %d)\n",
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sectors / (1024 * 1024 / secsize), sectors, sc->pd_id);
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sc->pd_disk = disk_alloc();
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sc->pd_disk->d_drv1 = sc;
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sc->pd_disk->d_maxsize = min(sc->pd_controller->mfi_max_io * secsize,
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(sc->pd_controller->mfi_max_sge - 1) * PAGE_SIZE);
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sc->pd_disk->d_name = "mfisyspd";
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sc->pd_disk->d_open = mfi_syspd_open;
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sc->pd_disk->d_close = mfi_syspd_close;
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sc->pd_disk->d_strategy = mfi_syspd_strategy;
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sc->pd_disk->d_dump = mfi_syspd_dump;
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sc->pd_disk->d_unit = sc->pd_unit;
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sc->pd_disk->d_sectorsize = secsize;
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sc->pd_disk->d_mediasize = sectors * secsize;
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if (sc->pd_disk->d_mediasize >= (1 * 1024 * 1024)) {
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sc->pd_disk->d_fwheads = 255;
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sc->pd_disk->d_fwsectors = 63;
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} else {
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sc->pd_disk->d_fwheads = 64;
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sc->pd_disk->d_fwsectors = 32;
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}
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sc->pd_disk->d_flags = DISKFLAG_UNMAPPED_BIO;
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disk_create(sc->pd_disk, DISK_VERSION);
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device_printf(dev, " SYSPD volume attached\n");
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return (0);
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}
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static int
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mfi_syspd_detach(device_t dev)
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{
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struct mfi_system_pd *sc;
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sc = device_get_softc(dev);
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device_printf(dev, "Detaching syspd\n");
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mtx_lock(&sc->pd_controller->mfi_io_lock);
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if (((sc->pd_disk->d_flags & DISKFLAG_OPEN) ||
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(sc->pd_flags & MFI_DISK_FLAGS_OPEN)) &&
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(sc->pd_controller->mfi_keep_deleted_volumes ||
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sc->pd_controller->mfi_detaching)) {
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mtx_unlock(&sc->pd_controller->mfi_io_lock);
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device_printf(dev, "Cant detach syspd\n");
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return (EBUSY);
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}
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mtx_unlock(&sc->pd_controller->mfi_io_lock);
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disk_destroy(sc->pd_disk);
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mtx_lock(&sc->pd_controller->mfi_io_lock);
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TAILQ_REMOVE(&sc->pd_controller->mfi_syspd_tqh, sc, pd_link);
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mtx_unlock(&sc->pd_controller->mfi_io_lock);
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free(sc->pd_info, M_MFIBUF);
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return (0);
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}
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static int
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mfi_syspd_open(struct disk *dp)
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{
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struct mfi_system_pd *sc;
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int error;
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sc = dp->d_drv1;
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mtx_lock(&sc->pd_controller->mfi_io_lock);
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if (sc->pd_flags & MFI_DISK_FLAGS_DISABLED)
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error = ENXIO;
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else {
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sc->pd_flags |= MFI_DISK_FLAGS_OPEN;
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error = 0;
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}
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mtx_unlock(&sc->pd_controller->mfi_io_lock);
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return (error);
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}
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static int
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mfi_syspd_close(struct disk *dp)
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{
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struct mfi_system_pd *sc;
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sc = dp->d_drv1;
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mtx_lock(&sc->pd_controller->mfi_io_lock);
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sc->pd_flags &= ~MFI_DISK_FLAGS_OPEN;
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mtx_unlock(&sc->pd_controller->mfi_io_lock);
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return (0);
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}
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int
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mfi_syspd_disable(struct mfi_system_pd *sc)
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{
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device_printf(sc->pd_dev, "syspd disable \n");
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mtx_assert(&sc->pd_controller->mfi_io_lock, MA_OWNED);
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if (sc->pd_flags & MFI_DISK_FLAGS_OPEN) {
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if (sc->pd_controller->mfi_delete_busy_volumes)
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return (0);
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device_printf(sc->pd_dev,
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"Unable to delete busy syspd device\n");
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return (EBUSY);
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}
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sc->pd_flags |= MFI_DISK_FLAGS_DISABLED;
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return (0);
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}
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void
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mfi_syspd_enable(struct mfi_system_pd *sc)
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{
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device_printf(sc->pd_dev, "syspd enable \n");
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mtx_assert(&sc->pd_controller->mfi_io_lock, MA_OWNED);
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sc->pd_flags &= ~MFI_DISK_FLAGS_DISABLED;
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}
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static void
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mfi_syspd_strategy(struct bio *bio)
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{
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struct mfi_system_pd *sc;
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struct mfi_softc *controller;
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sc = bio->bio_disk->d_drv1;
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if (sc == NULL) {
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bio->bio_error = EINVAL;
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bio->bio_flags |= BIO_ERROR;
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bio->bio_resid = bio->bio_bcount;
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biodone(bio);
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return;
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}
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controller = sc->pd_controller;
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bio->bio_driver1 = (void *)(uintptr_t)sc->pd_id;
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/* Mark it as system PD IO */
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bio->bio_driver2 = (void *)MFI_SYS_PD_IO;
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mtx_lock(&controller->mfi_io_lock);
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mfi_enqueue_bio(controller, bio);
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mfi_startio(controller);
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mtx_unlock(&controller->mfi_io_lock);
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return;
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}
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static int
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mfi_syspd_dump(void *arg, void *virt, vm_offset_t phys, off_t offset,
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size_t len)
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{
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struct mfi_system_pd *sc;
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struct mfi_softc *parent_sc;
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struct disk *dp;
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int error;
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dp = arg;
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sc = dp->d_drv1;
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parent_sc = sc->pd_controller;
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if (len > 0) {
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if ((error = mfi_dump_syspd_blocks(parent_sc,
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sc->pd_id, offset / MFI_SECTOR_LEN, virt, len)) != 0)
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return (error);
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} else {
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/* mfi_sync_cache(parent_sc, sc->ld_id); */
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}
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return (0);
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}
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